Device for centering type-written headings.



E. SCHWARTZ DEVICE FOR GENTERING TYPE WRITTEN HEADINGS.

Patented Oct-17,1911.

APPLICATION FILED 1330.19, 1910.

Lwasaz.

- the carriage for one letter space.

TED s EMANUEL SCHWARTZ, OF NEW -YORK, N. YL', ASSIGNOR TO THE OLIVER TYPEWRITER COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

DEVICE FOR GENTERING TYPE-WRITTEN HEADINGS.

Specification 01 Letters Patent.

Patented Oct. 1'7, 1911.

Application filed December 19, 1910. Serial No. 598,152.

To all whom it may concern:

Be it known that I, EMANUEL SCHWARTZ,

a citizen of the United States, and a resident 10 thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention relates to a device applied to the paper-carriage of a typewriting machine for centering typewriter headings and consists of the matters hereinafter described and more particularly pointed out in the appended claims.

In the drawings, Figure 1 represents a top plan view of a paper-carriage of'a typewriting machine provided with my improvements. Fig. 2 is a view representing a cross section through the paper guide plate, on the line 2-2 of Fig. 1.

I have shown; my invention herein as applied to the paper-carriage of a type'writing machine known {as the Oliver but it will be apparent that it may be readily applied to other typewriting machines. I

Asshown in the drawings, A A indicate the end members' of the paper carriage which are connected-by front and rear longitudinal members .(not shown) in the usual manner."

B indicates the platen and B one of the presser-rolls for pressing the paper against the platen.

C C indicate adjustable, marginal guides for guiding the paper around the upper side of the'platen. Y

D D indicate the upper and lower guides or shields located at the rear of the platen or at the entering side of the carriage, said shields extending between and being attached to the end plates of the carriage. The carriage frame .is provided in frontwith the usual scale F which has graduations numbered from left to right, each graduation representing the movement of E designates a1 left-hand margin paperguide applied to the upper face of the lower paper shield or guide plate D Said marginal guide consists of a narrowplate or bar extending at right angles to the axis of the platen, and attached to the shield D by means permitting it to be adjusted longitudinally of the carriage to accommodate the carriage to sheets of different widths while maintaining the guide in its position at ,right angles to the axis of the platen. Said guide-bar is made of some thickness so that the left-hand margin of the paper will alwaysstrike the same when being inserted in the carriage.

. The parts thus miliar construction and are substantially identical with those described in Letters Patent No. 829,093, granted August 21st, 1906, to A. A. Anderson.

On the lower shield or guide-plate D adjacent the rear end of the left hand margin paper-guide E, is a scale J, which extends parallel to the longitudinal axis of the platen far referred to are of fa- B. This scale is formed by measuring on the shield or guide-plate from a point which corresponds with, and is in vertical alinement above the middle point of the letterspace scale F, which point, in this case, is

the graduation thereon, indicated. on the scale as 35. Said scale J is graduated into units and parts thereof, in this case halves and. quarters, each unit being equal to onehalf of a unit. of length as, for example, an inch and is provided with numerals K numbering the units and reading in numerical order from right to left. Any point on this scale J will thus be indicated as being. a certain number of units or parts thereof to the left of the middle of the paper-carriage,

which number is exactly twice the number of full lineal units, in this case inches, that said point is distant to the left of "the middle point of the letter-space scale F. Thus, if a sheet of paper is eight and a half inches wide and it be placed in the paper-carriage with its left-hand marginal edge upon the graduation reading eight and a half on the scale J, it is apparent that the left-hand edge-of the paper is actually one-half of eight and a half inches, or four and onequarter-inches to the left of the middle point of the letter-space scale, so that the middle line of the sheet coincides with the middle point of'the. letter-space scale,-in

other words, the sheet, is centered in the with its left-hand margin adjusted so as to coincide with the proper 'graduation mark on the scale J, theguide-bar E is first moved toward the right until its right-hand edge comes into line with said graduation mark of the scale. The sheet of paper is then placed-in the paper-carriage with its leftright of the first named scale and to the rear of the same, said scale representing actual lineal units, in this case inches, measured from the right hand edge of the guide-bar E when the same is in its normal position at the extreme limit of its movement to the. leftjas indicated by dotted lines. This scale is for convenience in determining the actual width of a sheet of paper that is to be centered in the paper-carriage;

In. addition to the usual numbering on the letter-space scale F, the middle point of said scale, in this case, the graduation mark corresponding to the number 35 is indicated by a zero mark 6 and there are provided on said scale F auxiliary numerals e, numbering said g'raduations and reading from said zero mark to the right and to the left thereof. By means of the auxiliary numerals 6, it is possible to center a heading or other typewritten line on a sheet which has been centered in the paper-carriage, by counting the number of letters and spaces in the heading or other line and then beginning to write at a point on the scale E to the left of the zero point 6 indicated by the auxiliary numbering 6 thereof corresponding to' one-half that number. The line or heading when written will be accurately centered. I

My improved construction is used as follows: The sheet X is placed on the paper carriage with its left-hand edge against the right-hand edge of the guide E, which, in the first instance, is in the position indicated in. dotted lines at the extreme left-hand. limit of its movement. The point where the right-hand edge of the sheet falls on the scale L is then read which reading gives the exact width of the paper. The position of the sheet shown in dotted lines, X shows the paper when being measured in this way. In the example illustrated the sheet measured is 6% inches wide. The guide bar E is then moved to the right until its righthand edge comes in line with the graduation reading (l on the scale J and the sheet X is then placed in the paper-carriage with itsleft-hand edge in engagement with the right-hand edge of the guide-bar G and I inserted in the carriage in the ordinary manner. The paper is thus'accurately centered in the carriage without the trouble of calculating or dividing the- Width of the paper and this, no matter what the fraction gins in the usual way. A line or heading may now be centered by the use of the auxiliary numbering e of the scale F as above described.

.It will be apparent that the scale L may be dispensed with as it is simply for the purpose of convenience, in measuring the width "of. the sheet. Said Width may be measured in any other convenient manner as by means of an ordinary rule.

Manifestly the scale J may be graduated so as to be capable of use in connection with a scale for determining the paper width which is graduated into any lineal units, it being only necessary that the units ,of the scale J bear the relation described to the measuring scale.

-I claim as my invention 1. In a typewriting machine, in combination, a paper carriage, a guide plate adapted for guiding a sheet of paper thereinto a letter space scale located on the carriage, an

auxiliary scale associated with said guide plate, arranged parallel to the longitudinal axis of the paper carriage and graduated into units measured from a point in vertical alinement with a predetermined point on the letter space scale, said units being numbered from said point toward. one end of the paper carriage, the length of each unit of the auxiliary scale bearing the same ratio to the length of a predetermined unit of linear measurement that the number of letter spaces on the letter space scale on the same side of said predetermined point thereon as the auxiliary scale bears to the total number of letter spaces. V

2. In a typewriting machine, in combination with the paper-carriage, a guide plate adapted for guiding a sheet of paper thereinto, a scale associated with said guide plate,

said scale being arranged parallel to the longitudinal axis of the paper carriage and being graduated into units measured from a transverse median line of the carriage, said units being numbered from said median line toward one end of the paper carriage, and each unit of the scale being equal to onehalf of a predetermined unit of linear measurement.

3. In a typewriting machine, in combination with the paper-carriage and a guide plate adapted for guiding a sheet of paper thereinto, a marginal guide bar adjustable in a longitudinal direction, having an edge facing toward a transverse median line of the paper-carriage and extending at right angles to the longitudinal axis of the carriage, and a scale located on said guide plate, said scale being arranged parallel to the longitudinal axis'of the paper-carriage and being graduated into units measured from said median line of the carriage, said units being numbered from said median line toward said marginal guide bar, andeach unit of the scale being equal to one-half of a predetermined unit of linear measurement.

4. In a typewriting machine, in combination with the paper-carr age, a guide-plate adapted for guiding asheet of paper thereinto and a letter-space scale located on said carriage, an auxiliary scale located on said guide plate, said scale being arranged parallel to the longitudinal axis of the papercarriage and being graduated into units measured from a point in vertical alinement above the middle graduation of said letterspace scale, said units being numbered from said point toward one end of the paperriage, and each unit carriage, a margin a ad3ustable in a longitudinal direction toward the right and extending at right angles to the longitudinal axis of the carriage, an auxiliary scale located on said guide plate,

said scale being arranged parallel to the longitudinal axis of the paper-carriage, and being graduated into units measured from a point in vertical alinement above the middle graduation of said. letter-space scale, said units being ward the left hand end of the paper-carof the scale being equal to one-half of a predetermined unit of linear-measurement, said letter-space scale vbeing provided with a zero. mark at itsmiddle graduation and with numerals reading in both directions from said zero point, and a third scale located on said guide plate and graduated into lineal units from the right hand edge of said left-hand guide bar when in its extreme left hand position, said lineal units being numbered from left to right. 7

In testimony, that I claim the foregoing as my invention I affix my signature in the presence of two witnesses, this 10th dayof December A. D. 1910.

EMANUEL SCHWARTZ. Witnesses:

L. TANENBARBY, I. TBAOHTENBERG.

I left hand guide bar numbered from said point to- 

